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Old 02-23-2011, 08:35 AM   #1
damien235
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Registered: Feb 2011
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[SENDMAIL]relay only to auth users if FROM: user@mydom and no relay for staff@mydom


Hi everyone!

is there a way to force sendmail to authenticate the users if the
email sender field is "From user@mydomain.com"?
this because i receive a lot of emails where the sender smtp field is
forged by spammers, this enables them to send emails to my domain without being authenticated.

I would also like to force authentication to "group" emails account
(like staff@mydomain.com) only to authenticated users? this would
limit the spam from users@other_domain.com to staff@mydomain.com.

maybe i could implement those features with spamassassin although sendmail maybe seems more right, what do you think?

my version: Sendmail 8.13.1/8.13.1

thankyou very much !
damien
 
  


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